export default function createModal({
  Backdrop,
  BaseComponent,
  CLASS_PREFIX,
  DATA_PREFIX_BASE,
  DATA_PREFIX,
  enableDismissTrigger,
  EventHandler,
  FocusTrap,
  isElement,
  isRTL,
  isVisible,
  Manipulator,
  reflow,
  ScrollBarHelper,
  SelectorEngine,
}) {

  /**
   * Constants
   */

  const NAME = 'modal'
  const DATA_KEY = `${DATA_PREFIX_BASE}.modal`
  const EVENT_KEY = `.${DATA_KEY}`
  const DATA_API_KEY = '.data-api' // OK without prefix
  const ESCAPE_KEY = 'Escape'

  const EVENT_HIDE = `hide${EVENT_KEY}`
  const EVENT_HIDE_PREVENTED = `hidePrevented${EVENT_KEY}`
  const EVENT_HIDDEN = `hidden${EVENT_KEY}`
  const EVENT_SHOW = `show${EVENT_KEY}`
  const EVENT_SHOWN = `shown${EVENT_KEY}`
  const EVENT_RESIZE = `resize${EVENT_KEY}`
  const EVENT_CLICK_DISMISS = `click.dismiss${EVENT_KEY}`
  const EVENT_MOUSEDOWN_DISMISS = `mousedown.dismiss${EVENT_KEY}`
  const EVENT_KEYDOWN_DISMISS = `keydown.dismiss${EVENT_KEY}`
  const EVENT_CLICK_DATA_API = `click${EVENT_KEY}${DATA_API_KEY}`

  const CLASS_NAME_OPEN = `${CLASS_PREFIX}modal-open`
  const CLASS_NAME_FADE = `${CLASS_PREFIX}fade`
  const CLASS_NAME_SHOW = `${CLASS_PREFIX}show`
  const CLASS_NAME_STATIC = `${CLASS_PREFIX}modal-static`

  const OPEN_SELECTOR = `.${CLASS_PREFIX}modal.${CLASS_PREFIX}show`
  const SELECTOR_DIALOG = `.${CLASS_PREFIX}modal-dialog`
  const SELECTOR_MODAL_BODY = `.${CLASS_PREFIX}modal-body`
  const SELECTOR_DATA_TOGGLE = `[data-${DATA_PREFIX}toggle="modal"]`

  const Default = {
    backdrop: true,
    focus: true,
    keyboard: true,
  }

  const DefaultType = {
    backdrop: '(boolean|string)',
    focus: 'boolean',
    keyboard: 'boolean',
  }

  /**
   * Class definition
   */

  class Modal extends BaseComponent {
    constructor(element, config) {
      console.log('ELEMENT', element)
      super(element, config)
      if (!element) {
        return
      }

      this._dialog = SelectorEngine.findOne(SELECTOR_DIALOG, this._element)
      this._backdrop = this._initializeBackDrop()
      this._focustrap = this._initializeFocusTrap()
      this._isShown = false
      this._isTransitioning = false
      this._scrollBar = new ScrollBarHelper()

      this._addEventListeners()
    }

    // Getters
    static get Default() {
      return Default
    }

    static get DefaultType() {
      return DefaultType
    }

    static get NAME() {
      return NAME
    }

    // Public
    toggle(relatedTarget) {
      return this._isShown ? this.hide() : this.show(relatedTarget)
    }

    show(relatedTarget) {
      if (this._isShown || this._isTransitioning) {
        return
      }

      const showEvent = EventHandler.trigger(this._element, EVENT_SHOW, {
        relatedTarget,
      })

      if (showEvent.defaultPrevented) {
        return
      }

      this._isShown = true
      this._isTransitioning = true

      this._scrollBar.hide()

      document.body.classList.add(CLASS_NAME_OPEN)

      this._adjustDialog()

      this._backdrop.show(() => this._showElement(relatedTarget))
    }

    hide() {
      if (!this._isShown || this._isTransitioning) {
        return
      }

      const hideEvent = EventHandler.trigger(this._element, EVENT_HIDE)

      if (hideEvent.defaultPrevented) {
        return
      }

      this._isShown = false
      this._isTransitioning = true
      this._focustrap.deactivate()

      this._element.classList.remove(CLASS_NAME_SHOW)

      this._queueCallback(
        () => this._hideModal(),
        this._element,
        this._isAnimated(),
      )
    }

    dispose() {
      EventHandler.off(window, EVENT_KEY)
      EventHandler.off(this._dialog, EVENT_KEY)

      this._backdrop.dispose()
      this._focustrap.deactivate()

      super.dispose()
    }

    handleUpdate() {
      this._adjustDialog()
    }

    // Private
    _initializeBackDrop() {
      return new Backdrop({
        isVisible: Boolean(this._config.backdrop), // 'static' option will be translated to true, and booleans will keep their value,
        isAnimated: this._isAnimated(),
      })
    }

    _initializeFocusTrap() {
      return new FocusTrap({
        trapElement: this._element,
      })
    }

    _showElement(relatedTarget) {
      // try to append dynamic modal
      if (!document.body.contains(this._element)) {
        document.body.append(this._element)
      }

      this._element.style.display = 'block'
      this._element.removeAttribute('aria-hidden')
      this._element.setAttribute('aria-modal', true)
      this._element.setAttribute('role', 'dialog')
      this._element.scrollTop = 0

      const modalBody = SelectorEngine.findOne(
        SELECTOR_MODAL_BODY,
        this._dialog,
      )
      if (modalBody) {
        modalBody.scrollTop = 0
      }

      reflow(this._element)

      this._element.classList.add(CLASS_NAME_SHOW)

      const transitionComplete = () => {
        if (this._config.focus) {
          this._focustrap.activate()
        }

        this._isTransitioning = false
        EventHandler.trigger(this._element, EVENT_SHOWN, {
          relatedTarget,
        })
      }

      this._queueCallback(transitionComplete, this._dialog, this._isAnimated())
    }

    _addEventListeners() {
      EventHandler.on(this._element, EVENT_KEYDOWN_DISMISS, (event) => {
        if (event.key !== ESCAPE_KEY) {
          return
        }

        if (this._config.keyboard) {
          this.hide()
          return
        }

        this._triggerBackdropTransition()
      })

      EventHandler.on(window, EVENT_RESIZE, () => {
        if (this._isShown && !this._isTransitioning) {
          this._adjustDialog()
        }
      })

      EventHandler.on(this._element, EVENT_MOUSEDOWN_DISMISS, (event) => {
        // a bad trick to segregate clicks that may start inside dialog but end outside, and avoid listen to scrollbar clicks
        EventHandler.one(this._element, EVENT_CLICK_DISMISS, (event2) => {
          if (
            this._element !== event.target ||
            this._element !== event2.target
          ) {
            return
          }

          if (this._config.backdrop === 'static') {
            this._triggerBackdropTransition()
            return
          }

          if (this._config.backdrop) {
            this.hide()
          }
        })
      })
    }

    _hideModal() {
      this._element.style.display = 'none'
      this._element.setAttribute('aria-hidden', true)
      this._element.removeAttribute('aria-modal')
      this._element.removeAttribute('role')
      this._isTransitioning = false

      this._backdrop.hide(() => {
        document.body.classList.remove(CLASS_NAME_OPEN)
        this._resetAdjustments()
        this._scrollBar.reset()
        EventHandler.trigger(this._element, EVENT_HIDDEN)
      })
    }

    _isAnimated() {
      return this._element.classList.contains(CLASS_NAME_FADE)
    }

    _triggerBackdropTransition() {
      const hideEvent = EventHandler.trigger(
        this._element,
        EVENT_HIDE_PREVENTED,
      )
      if (hideEvent.defaultPrevented) {
        return
      }

      const isModalOverflowing =
        this._element.scrollHeight > document.documentElement.clientHeight
      const initialOverflowY = this._element.style.overflowY
      // return if the following background transition hasn't yet completed
      if (
        initialOverflowY === 'hidden' ||
        this._element.classList.contains(CLASS_NAME_STATIC)
      ) {
        return
      }

      if (!isModalOverflowing) {
        this._element.style.overflowY = 'hidden'
      }

      this._element.classList.add(CLASS_NAME_STATIC)
      this._queueCallback(() => {
        this._element.classList.remove(CLASS_NAME_STATIC)
        this._queueCallback(() => {
          this._element.style.overflowY = initialOverflowY
        }, this._dialog)
      }, this._dialog)

      this._element.focus()
    }

    /**
     * The following methods are used to handle overflowing modals
     */

    _adjustDialog() {
      const isModalOverflowing =
        this._element.scrollHeight > document.documentElement.clientHeight
      const scrollbarWidth = this._scrollBar.getWidth()
      const isBodyOverflowing = scrollbarWidth > 0

      if (isBodyOverflowing && !isModalOverflowing) {
        const property = isRTL() ? 'paddingLeft' : 'paddingRight'
        this._element.style[property] = `${scrollbarWidth}px`
      }

      if (!isBodyOverflowing && isModalOverflowing) {
        const property = isRTL() ? 'paddingRight' : 'paddingLeft'
        this._element.style[property] = `${scrollbarWidth}px`
      }
    }

    _resetAdjustments() {
      this._element.style.paddingLeft = ''
      this._element.style.paddingRight = ''
    }

    // Static
    static jQueryInterface(config, relatedTarget) {
      return this.each(function () {
        const data = Modal.getOrCreateInstance(this, config)

        if (typeof config !== 'string') {
          return
        }

        if (typeof data[config] === 'undefined') {
          throw new TypeError(`No method named "${config}"`)
        }

        data[config](relatedTarget)
      })
    }
  }

  /**
   * Data API implementation
   */

  EventHandler.on(
    document,
    EVENT_CLICK_DATA_API,
    SELECTOR_DATA_TOGGLE,
    function (event) {
      const target = SelectorEngine.getElementFromSelector(this)

      if (!target) {
        console.warn('No target found for component', NAME)
        return
      }

      if (['A', 'AREA'].includes(this.tagName)) {
        event.preventDefault()
      }

      EventHandler.one(target, EVENT_SHOW, (showEvent) => {
        if (showEvent.defaultPrevented) {
          // only register focus restorer if modal will actually get shown
          return
        }

        EventHandler.one(target, EVENT_HIDDEN, () => {
          if (isVisible(this)) {
            this.focus()
          }
        })
      })

      // avoid conflict when clicking modal toggler while another one is open
      const alreadyOpen = SelectorEngine.findOne(OPEN_SELECTOR)
      if (alreadyOpen) {
        Modal.getInstance(alreadyOpen).hide()
      }

      const data = Modal.getOrCreateInstance(target)

      data.toggle(this)
    },
  )

  enableDismissTrigger(Modal)

  return Modal
}
